EP 0654491 B1 2000-03-01 - Branched copolyestercarbonates

Title (en)

Title (de)

Title (fr)

Publication

Application

Priority

US 15424293 A 19931118

Abstract (en)

[origin: EP0654491A2] A reduced glass transition temperature copolyester-carbonate which displays non-Newtonian melt behavior was synthesized by using bisphenol-A, a dicarboxylic acid and a trisphenol. The branched copolymer was obtained by interfacial phosgenation. One of the compositions described displays a Tg of about 127 DEG C and twice the melt flow index of a branched polycarbonate of corresponding molecular weight or intrinsic viscosity.